2:10: The Cards officially announced the trade, according to MLB.com's Matthew Leach.
11:39am: Derrick Goold of the Post-Dispatch says there's been no talk of an extension for Holliday. As Tim asks on MLBTR's Twitter, "when has a Boras client foregone free agency two months out to take a discount?"
11:16am: ESPN.com's Buster Olney reports that the deal is complete. The A's will contribute $1.5MM to the remainder of Holliday's salary, which leaves the Cards with about $4.5MM.
11:11am: Bernie Miklasz of the St. Louis Post Dispatch says the teams are reviewing the players' medical records. The deal will go through unless they encounter an unexpected medical issue.
11:07am: Ed Price of AOL FanHouse hears the deal will go down. A source tells Price the sides are "finalizing as we speak."
10:58am: Jon Heyman of SI.com says the deal is "very close" to completion.
10:21am: The Cardinals are close to acquiring Matt Holliday from the A's for Brett Wallace and two other players, according to ESPN.com's Tim Kurkjian. Outfielder Shane Peterson and righty Clayton Mortensen are also headed to Oakland if the deal goes through.
It's unclear who would pay Holliday the remaining $6MM on his contract should the teams complete a trade.